Improvement in wheels for vehicles



UNITED STATES PATENT QEEIGE HIRAM K. HAZLETT, 0F ST. LOUIS, MISSOURI.

IMPROVEMENT IN WHEELS FOR VEHICLES.

Specification forming part of Letters Patent No. l 52,747, dated July 7, 1874; application filed June 30, 1873.

To all whom. it may concern:

Be it known that I, HIRAM K. HAZLETT, a resident ot' the city and county of St. Louis, and State of Missouri, have invented new and useful Improvements in Vehicle-Wheel Hubs, otwhich the following is a full, clear, and exact description, reference being had to the annexed drawing and to Athe letters of reference thereon marked, making a part of this specification, in which- Figure 1 is a central longitudinal sectional view of a hub containing the improvement. Figs. 2, 3, and 4 are views ot' various moditlcations ofthe invention.

Similar letters indicate similar parts.

The object of the present invention is to provide a ready, neat, and effectual means for oiling` carriage-axles, and consists chiefly in an oil-reservoir of peculiar construction, and arranged in the hub in a novel manner, substantially as is hereinafter described.

In the drawing, A, Fig. 1, represents a vehicle-wheel hub of ordinary construction; and B, the customary boxing; and C, an axle. l) represents an oil-cup. lt is preferably iliade in the form of a tube, and is provided with a thread both on its inner and on its outer sides. It is of any suitable diameter, and, in length, extends transversely through the hub from the outside thereof nearly to the boxing B. Underneath the cup D, and between it and the boxing B, is arranged an elastic Washer, E, preferably made of rubber. This washer, by preference, is ofthe shape shown in Fig. 3 viz., concave on` its under side-to correspond to the curvature of the boxing, and dat on the upper side. Its thickness is a little more than the space between the cup D and boxing C. There is a passage-way, F, in the boxing B, in line with the center ofthe cup D when the latter is in position. The passageway extends 4furnished with shoulders.

through the boxing. In diameter it is preferably less than that of the cup D. The cup is provided with a cover, H, which may he moditied in construction, as shown at H, I, 4and J, respectively, in Figs. 2, 3, and 4, for the pur pose of enabling it to be operated by the hand dircctl y, or by an ordinary screw-driver or Wrench. In attaching the cup D in place, it is screwed into the hub A. To enable this to be done readily, the cup, on its inner side, just below the position of the bottom Aof the cover H, is provided with a flange, d, that extends around the cup, and that, on its inner side, is Into the opening thus formed a tool of corresponding shape is inserted, and by turning it the cup is screwed ins When in position the bottom ot' the cup presses closely against the washer E, which, in turn, is forced against the boxing B. A tight joint beyond the eu p and boxing is thus formed.

To operate the invention oil is poured into the cup D and the cover H put on. Under the motion of the wheel the oit-trickles down the passage-way F to the axle, and thence along' it. In this Way a vehicle wheel-axle can be oiled easily, it being necessary to rel move the cover of the cup only.

Having described my invention, what I claim as never therein, and desire to secure by Letters Patent, is-

The cup D provided with ilange d, cover H, washer E, hub A, boxing B provided with the passa ge-Way F, and axle C, combined substantially as and for the purpose described and l shown.

HIRAM K. HAZLETT.

Witnesses:

CHs. D. MOODY, HENRY J. KING. 

